Gas generator and lamp.



B. L. DURAN. GAS GENERATOR AND LAMP. Ar'rmoumn FILED MAY 7, 1906.

Patented May -l1, 1909.

ROBERT L. DURAN, or CHICAGO, inrnvois."

ens GENERATOR AIND LAMP.

To all whom it' m ay concern Be it known that I, ROBERT L., Domma citzen of the, United States of America, and

' a resident of Chicago, in the-county of Cook and State of Illinois,-have invented certain new and useful Improvements in Gas Generators andLamps,- ofwhichthe following is a specification.

The main objectotmy invention is to provide an improved gas generatorand lamp in- .which an inverted mantle is usedto throw the light 1downward and outward without obstruction, so as .to produce a shadowlesslight which can be made portable and readily set up or attached inplaceswhere anincandescentlight is wanted andwhich are not. providedwith the ordinary gas orelectric light fixtures. Thisobject isaccomplished by the device shownln the accompanyingd'rawings, in which:v I I Figure 1 is a vertical section of a generatorand-lamp constructedaccording to this invention. Fig, 2 is an enlarged vertical sec- 7 tionof the lower end of the generator. Fig.

3 shows a vertical section of the needle valve 8 which controls thesupply of fuel to the va orizer. 1 a

' n the form sliown,'the casing'l has anair tube 2 extendinghorizontally. through the same. Said tube 2 has the u per interiorlythreaded extension 3 having t readed therein the gas tip 4 which has thedischarge 'ori- 'fice 5; A layer of gauze dextends across said tip 'atthe lower end of the generator pipe or chamber 7 which is threaded intosaid gas tip '4. The generator'chamber or 'vapoe rizing tube 7 hasaneedle valve or shut-off. valve 8 at its upper part' The canopy 9 has Ithe erforated-s'lde walls 10 and rests loosely in t e flared art 11 ofthe casing 1.1 The perforated -wa l 10 has an aperture 12 therein ofsuificient size to permit alcohol'to be injected through. a tubejintothe asbestos-retaining cup 13 or starter-lamp. Said cup 13 is made inthe form of an annular trough surrounding the lower end of the eneratorithin the tube 2 is a slidevalve 14 for. shutting off the discharge ofgas fromthe orifice' 5. The gas tube 15 is connected to andextends,down:

wardly from the air tube -2 and has threaded thereto an extension 16from which is suspended the Inant1e'17. Said mantle isat- .tached to,the ring" 18-which connects by means of arms"19 with the cap20. Said capperf0rated-;at"21,. and is attached to the Specification of LettersPatent. "Application filed May 7, 19cc.

to heat the generator.

Serial no. 315,574.

tube 16'by means of a pin 22 on said-tube engaging in the slot 23 ofsaid cap. The ca s-LI ing 1 .lsperforated near its lower' part at '24,]

and-is provided with screws 25 for engaging the flange 26 ofv the globe27.

. rammed May 11 1909.

-.The operation of the device shown is as follows:.Gasolene isinjectedinto the gener ator chamber, 7, under pressure, through theusual'.wircfee( l, and the flow into said chamber'is controlled by thevalve 8. Before the. valve 8 is opened so as to permit the flow ofgasolene or other-gas forming liquid into. the chamber 7, the asbestos28 contained inthe cup13 will be soaked with sul'licient alcohol v Thismay be ignited either through the orifice 12 or by lifting the cano y'9. When the chamber 7 is suflicient yheated, the valve 8 is opened. The

- gas generated -in the chamber 7 passes through the orifice 5am] downinto the tube 15 in the direction of the arrows, then through the mantle17, and upwardly within the casing 1, around the'air tube 2 and is thereignited by the flame at the cup 13.' This causes the ignition of the gasat the mantle 17 in the usual manner. The heat in the upper part of thecasing 1 causes an upward draftof air in the casing. This draws the airinto the tube 1 2,where it mixes with the gas and passes'down throughthe tube 15 and through the mantle. The tubes 2 and 15 together with thegas tip '6 form a Bunsen bu'rner which provides suificientair to heatthe-.mantleto 'incandescence. To shut oi? the gas and light, the valve 8is closed and the slide valve 14' is pushed inwardly to close theorifice -5.- The, closing of the valve 14 shuts oil? the gas so as toimmediately eX- tihguish the flame. If the valve 145 should be leftopen, the small quantity of gas passing from the generator chamber 7would cause the mantle to burn red and to'blacken in parts while saidgas isbeing exhausted from the generaton- The generator being directlyabove-and within the heating zone of the mantle, continues thegeneration of gas so lon 'as the valves 8 and 14 are 0 en, and while thegas is-burning at the mant e.

Since the mantle, mixing tube, and generating ,or vaporizing tube areall in the same- Vertical lineand co-axi'al with.e-ach other, and sincethe casing is coaxial with all of said parts, a great efiiciency isobtained both in heating the generator and in preheating the gas as itpasses down through the mixing tube. The casing guides .the heated airfrom the burner vertically along the mixing wardly from-said vaporizintube and coand vaporizing tubes, and distributes the axial therewith, anmverted mantle sursame equally upon all sides of said tubes.

The advantage of having the casing removably secured to the vaporizingtube, and having all of the other parts of the lamp secured to andsuspended within thecasing, is that the casing and attached parts of thelamp may thus be taken down for the purpose of cleaning or repairwithout detaching the vaporizing tube from its connection with thereservoir for the hydro-carbon liquid.

What I claim as my invention and desire to secure by Letters Patent is:

1.. A gas lamp and generator comprising a l l l rounding the lower endof said mixing tube and co-axial therewith, a casing surrounding saidtubes and mantle, concentric therewith, and adapted to convey the heatfrom said mantle upwardly along the vaporizing tube, and an air inletleading" from the outside of the easing into said mixing tube.

4. A gas generator and lamp, comprising in combination a verticalvaporizing tube, an

air inlet below the end thereof, a burner tube vertical vaporizing tube,a Bunsen burner suspended below, and in vertical line with saidva'iorizing tube and communicating therewit 1, an inverted mantlesuspended from and surrounding the lower end of said Bunsen b11111? 1and being in the vertical line of said vaporizing tube, and a casingsurrounding said vaporizing tube and Bunsen burner and adapted toconduct the heat from said mantle vertically along said vaporizing tube.

2. A gas lamp and generator comprising a vertical vaporizin tube havingat its upper end a valve-contro led liquid inlet, and at its lower end avalve-controlled gas outlet, a vertical gas mixing tube extendingdownwardly from said vaporizing tube in vertical line therewith, andhaving its upper end op on so as to admit 'air from outside of saidvaporizing tube, and a mantle surrounding the lower-end of said gastube, and being in the vertical line of said vaporizing tube.

- 3. A gas lamp and generator comprising a vertical vaporizing tubehaving at its upper end a valve-controlled liquid inlet, and at itslower end a valve-controlled gas outlet, a. vertical gas mixing tubeextending downi, in axial alinement with said vaporizing tube, aninverted mantle depending troin the lower end of said burner tube inaxial alinement therewith, and a casing surrounding said tubes andadapted to conduct heated air from said burner and mantle along saidvaporizing tube, said vaporizing tube being provided with means forregulating he fl w of liquid fuel into its upper end and means forregulating the discharge of gas from its lower end.

5. A gas lamp and generator comprising a vertical va orizing tube, aBunsen burner suspended elow and in vertical line with said va orizingtube and communicating therewit 1,, an inverted mantle suspended fromand surrounding the lower end of said 1 Bunsen burner and being in thevertical line of said vaporizing tube, and means at the top of saidvaporizing tube adapted to introduce liquid fuel into said tube inminute quantities adapted for immediate va orization by the heat risingfrom said mant .e.

Signed at Chicago this 5th day of May 1906.

ROBERT L, DORAN.

\Nitnesises p EUGENE A. RUMMLER, L. A. SMITH.

